<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>欢迎秘密登录</title>
    <style>
body{
    background-color: #605f93;
}
@media screen and (max-width: 5000px) {
    .container0{
        width: 40%;
        margin-left: 30%;
    }
}
@media screen and (max-width: 2600px) {
    .container0{
        width: 50%;
        margin-left: 25%;
    }
}
@media screen and (max-width: 600px) {
    .container0{
        width: 90%;
        margin-left: 5%;
    }
}
* {
    padding: 0;
    margin: 0;
}
.free-experience {
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    padding-top: 78px;
}
.free-experience input {
    flex: 1;
    height: 100%;
    border-radius: 48px 0 0 48px;
    padding-left: 24px;
    font-size: 16px;
    color: #383838;
}
.action {
    width: 108px;
    height: 100%;
    background-color: #ff561c;
    color: #fff;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0 48px 48px 0;
    cursor: pointer;
}
input, textarea {
    --webkit-user-select: auto;
}
button, input, select, textarea {
    border: none;
    outline: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    -o-appearance: none;
    appearance: Â none;
}
    </style>
</head>

<body>
    <div class="container0">
        <div class="free-experience">
            <input type="text" placeholder="请输入系统密码" maxlength="12">
            <div class="action">点我登录</div>
        </div>
    </div>
</body>

</html>